Leather product and a process of producing it



Patented Feb. 25, 1936 UNITED STATES PATENT OFFICE LEATHER PRODUCT AND A PROCESS OF PRODUCING IT Bert H. Bower, Gloversville, N. Y.

No Drawing. Application November 14, 1935, Serial N0. 49,859

9 Claims.

stock and possessing the characteristics oi being lit unusually soft, pliable, fragrant, and durable, as well as retaining the characteristics referred to for long duration, but it will be understood that the leather may be useful in other applications and purposes.

A further object of the invention is to provide a leather glove stools, possessing an unusually sozEt characteristic and which will retain this softness for a longer time than the leather now used in the production of gloves. A further obiect of the invention is to provide a leather glove stools which when/made up in glove like form and worn will soothe the slrin of the wearer, keep the hands soft, free from discoloration, and which will prevent chopping of the hands.

ii further object. of the invention is to provide a glove steel: which is perspiration prooi'.

Another object oi the invention is to produce aglove stool; comprising a leveled, dried, seasoned, mellowed, soft, pliable and fragrant com posite body consisting of glove leather, and a composite filer of lanolin, oleic acid, trlethanolamine, water, glycerin, honey, and a perfume, said filler substantially filling the said leather. The commercial product known as red oil which is principally oleicacid can be used for the oleic acid with equally'good results. The honey gives the composition the proper consistency requisite to the processes of its application,

The process of treating leather of that class used in. the manufacture of gloves so as to produce a glove stock which will possess the characteristics above referred to consists briefly in the following steps: forcing a liquid or cream, by means or compressed air or mechanical pressure, into ordinary glove leather so that the liquid or cream hills and impregnates the leather; brushing the impregnated leather with a bristle brush or cloth plush either by hand or with a mechanical brusher or plusher; sponging the brushed leather with the aforementioned liquid or creamby hand or with mechanical sponge rolls; wiping the sponged leather with cloth or bristles to remove excess liquid or cream; drying the wiped leather on racks in air conditioned chambers or rooms; and storing the dried leather in moisture and temperature controlled rooms until penetration has occurred sumciently to de- .velop the desiredproperties in the leather, at a temperatureior example F. to F., to

further the combination of the cream with the fibers of the leather. As a result of this treatment the leather becomes unusually mellowed, soft. and pliable and fragrant with the odor of the cream. This also counteracts the unpleasant odor of untreated leathers such as normally used and provides a glove stock which communicates softness to the hands when it is made up into and worn as a glove. The gloves are also perspiration proof and have improved qualities of washability. The leather can be kept in the moisture and temperature controlled rooms for adeps lane, oleic acid, triethanolamine, water,

The perfume glycerin, honey, and a perfume. used is preferably almond extract, but may of course be any perfume desired. It almond extract is used as the perfume the liquid or cream formed from the mixture is referred to as an almond cream.

fine example oi? the process oi treating glove leather to produce a glove stock, in accordance with this invention, will now be referred to.

The liquid or cream, constituting a filler for the leather is forced into the material by the application thereto of compressed air, but the forcing action may be had from any desired mechanical means suitable for the purpose. Likewise, any suitable means may be employed for applying the filler by compressed air. The filled or impregnated leather is then brushed with a bristle brush or cloth plush either by hand or mechanical brusher or plusher to remove any surplus filler material. The bristle, or cloth brusher or plusher may be operated either by hand or mechanically. The brushed leather is then spongecl with the liquid cream mentioned, either by hand or by mechanical sponge rolls. After the leather has been sponged, it is wiped to remove excess liquid or cream. The leather may be wiped with cloth or bristles in any suitable manner. When the sponged leather has been wiped it is then subjected to. a drying step which consists in suspending the wiped leather on racks in air conditioned chambers or drying rooms. The dried leather is then stored for the desired period of 2 aoaaezse a glove leather stock is produced which possesses the object of the invention. The leather not only embodies the several characteristics herelnbefc-re mentioned, but also is unusually mellow, soft, pliable, and fragrant with the odor of the filier which counteracts the odors of untreated leathers. The leather stock, in accordance with this invention, when employed in the production of gloves communicates softnessto the-hands when the gloves are worn, is perspiration proof and has improved washability. The preferred proportions of the liquid or cream which constitute the filler for the leather are as follows:

Lanolin or adeps 18,113? 7 Oleie a l Triethannlamine Glycerin c 12 Honey 2 Water 78 Almond extract (periume) 1 The proportions referred to may be varied to a reasonable extent.

The liquid or cream is prepared in the following manner. Te of the lanolin heated to 100 F. is added the cleic acid and triethanolamine with stirring until homogenous.v With continuous stirring, a volume of water equal to the lanolin prescut is poured in, then the balance of the lanolin andfinally more water until 10 parts, of water portion of the two latter may be varied-within those limits within which proper emulsification is accomplished. Other waxes or oils can be subst' uted for the lanolin as the emulsified agent.

While ordinary glove leather has been referred to-herein, the leather that will preferably be used is African sheepskin and chrome tanned leather. This leather is tanned and colored to desired shades, then the flesh side isshaved down to required fineness, after which the cream or liquid is applied.

. It is within the purview of this invention that the liquid or cream'of this formula can be applied during the tanning process as a fat liguor.

What I claim is:

1. A leather product comprising leather treated with a lubricant, an emulsifying agent for the lubricant, glycerin and honey.

'2. A leatherproduct comprising a mellow, soft, pliable composite body formed of leather and a filler or cream" including an emulsified lubricant, glycerin and honey.

3. A leather product comprising a mellow, soft, pliable composite body formed of leather and a filler or cream including an emulsified lubricant, glycerin and honey, said filler substantially filing the leather.

4. A glove stock comprising leather combined with means for imparting softness, pliability and mellowness thereto, said means substantially filling the leather and including a lubricant,,an

emulsifying agent, glycerin and honey.

5. The process of producing a leather product including impregnating with a. composition comprised essentially of a lubricant, an emulsifying agent for the lubricant, glycerin and honey.

6. The process of producing aleath'er product suitable as a glove stock including substantially 8. The process of, producing a leather product.

suitable as a glove stock including substantially filling the leather with a cream or filler for imparting mellowness, pliability and increased washability to the leather, said cream or filler comprising essentially an emulsified lubricant, glycerin, andhoney.

9. The process of producing a leather product suitable as a glove stock including substantially filling the leather with a cream or filler for imparting mellowness, pliability and increasedwashability to the leather, said cream or: filler 1 comprising essentially lanolin, an emulsifying agent, glycerin and honey. BERTH. BOWER. 

